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  1. fractal

    CA speed data acting weird above 50kph

    I noticed that my CA is giving me weird speed data above 50kph??? Its giving all kinds of readings and changes really fast. My pole count is right, the shunt value is right. Any ideas???
  2. fractal

    stuttering controller

    I noticed this morning my controller started stuttering a bit near the end of my commute. It happened when I was accelerating at maybe half or 3/4 throttle. Its the first time it happens and i did not change any settings on the CA or the controller before this. Is there any protection inside the...
  3. fractal

    is this an «ok» temporary match?

    I need a temporary controller for my cromotor/hubzilla. If I take it easy on the throttle, can this controller from ebikes.ca be a good temporary solution? (36-72V, 40A controller, 12xIRFB4110 mosfet) http://www.ebikes.ca/store/photos/C7240-NC.jpg
  4. fractal

    no load test, what happened???

    i was testing for phase/hall combination. as soon as i see the amps going up, i let go of the throttle and realize that i have a bad combo. then, nothing!!! no throttle response, but the ca is still on. what happened??? also when i turn the wheel by hand, it feels weird like one of the magnets...
  5. fractal

    pulse width modulation in controllers

    i have a basic understanding of PWM in controllers, I read somewhere that if your controller is always in PWM, it is working too hard it will heat up fast. When is it not in PWM? How does it work?
  6. fractal

    how hot does your controller get?

    I've been running a Lyen 24 fet controller with with very conservative settings. 40 current and 120 phase. After an easy ride (2000 watts max and not faster than 45 kmh). the controller gets pretty hot. I can keep my hands on it, but if it were a bit hotter, i would not last a couple of seconds...
  7. fractal

    Ottawa condo VS electric car battle!

    People can be such idiots! http://www.cbc.ca/news/canada/ottawa/story/2012/01/27/ottawa-condo-electric-car-battle.html
  8. fractal

    the end of thermal runaway???

    interesting article on new battery technology http://m.engadget.com/default/article.do?artUrl=http://www.engadget.com/2011/11/07/new-nanotube-battery-technology-leads-to-blisteringly-fast-recha/&category=classic&postPage=1
  9. fractal

    Another dead cyclist!

    Guys, a woman in her 30s has just been killed in front of my workplace in downtown Ottawa http://www.ottawasun.com/2011/10/11/cyclist-dies-after-being-hit-by-vehicle What the frock is going on!!!! I see motorists all the time driving downtown like frocking impatient maniacs. I dont know whose at...
  10. fractal

    quick hall sensor question

    Look at the pic, the question is written on it. Thanks!!!
  11. fractal

    10 awg phase : is it really worth it?

    I'm about to upgrade the phase wires on my HT to run 24s. I know there are some members who managed to put 10awg. I know this is very hard to do, but is it really worth it? If I put very short 12awg and 8awg at the exit of the axle, will this be good for 24s? I took a very close look at the...
  12. fractal

    soldering hall effect sensors

    Hey guys, I'm about to install honeywell hall sensors on my motor. I have no experience with soldering but I have read and watched numerous videos on Youtube. I know that the iron needs to heat up the components first but how much? Those hall sensors are tiny and i'm afraid of frying them ! Can...
  13. fractal

    Fractal's Norco A-line build

    Hey guys!!! For my winter project, I will be building a DH bike. I'm a commuter who has to deal with harsh urban terrain : pot holes, cracked pavement, sinked sewers, sidewalks, big hills, ...etc. With my hardtail, its OK but very unstable and not very comfortable!!! I need something HEAVY DUTY...
  14. fractal

    phase wiring help needed

    Hi All, I am in the process of upgrading the phase wires on my HT. I removed the side cover last night with no problem at all. I then cut the 3 ridiculously small stock wires. I'm trying to identify what these 3 wires are exactly from left to right? Positive? negative? and ???? I am also...
  15. fractal

    axle specifications

    Does anybody know the exact specifications of the HT3540's axle?
  16. fractal

    150mm to 135mm = will it fit???

    Hi all, i'm looking at a 2009 Norco Atomik. I want to fit a HT on it with some of Doc's torque arms. The problem is the !"/"/$%?& dropouts!!! They are 150mm and the axle of an HT is 135mm. I know some of you have done it the other way around, but what about 150 to 135??? How do I do it??? If i...
  17. fractal

    Looking for hall upgrade thread with pics

    I've been searching for a thread that explains how to replace halls with pics and detailed information. I even tried searching with google and eneded up with nothing. I found a couple of threads here, but without pics its a bit harder to understand (i'm somewhat of a noob). Any ideas???
  18. fractal

    150mm dropouts

    Is there a bike frame that has 150mm dropouts that does not cost 3000$ (norco DH, intense...etc):evil: Stretching my 135mm to me is not a good idea :(
  19. fractal

    paint

    I want to repaint my bike frame, been reading a lot on other forums. Has anyone ever used paint stripper? Also would like to know what kind of paint to use???
  20. fractal

    Air flow : in or out?

    I was thinking about drilling holes on my side covers and maybe adding some vents (I'm still thinking about how to do that). Then I asked myself, if I want my motor to stay cool, do I force the hot air out or force cold air in??? Any opinions or suggestions???
  21. fractal

    LIPO parallel balance harness question

    How does the charger or LVC-HVC board can detect the voltage of every individual cell in a pack when the balance harness is set up for parallel charging? I've been trying to find a thread on this without any success.
  22. fractal

    LIPO diagrams

    Hi everyone. Getting ready to switch to LIPO. I have seen hundreds of pics, read thousands of posts and trying to put it all together. If any of you LIPO users could post diagrams of your charge/discharge setups I would greatly appreciate it. Looking at pictures with a bunch of wires together...
  23. fractal

    Rshunt value on crystalyte controller

    Hello everyone, I'm trying to find out the Rshunt value on my new sensorless crystalyte 48v 45a controller. Unfortunately, there are no specs that came with it. Also, I think the people at Crystalyte dont know either. I know there is a way of doing this with an adjustable powersupply but I dont...
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